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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

EC50 > 2000 mg/l, nominal

Key value for chemical safety assessment

EC50 for microorganisms:
2 000 mg/L
EC10 or NOEC for microorganisms:
2 000 mg/L

Additional information

One test (Archroma, 2007) is available for Direct Black 80 and it was performed following OECD 209 (Activated Sludge, Respiration Inhibition Test).

The results show no toxicity to microorganism; therefore Direct Black 80 can be considered as not toxic.

Another test (Huntsman, 1997) is available for similar substance 3 and it was used as supporting, confirming the non toxicity to microorganism.